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Daniele Liotti as Lázaro |
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Óscar Jaenada as Nicolás Tremel |
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Laia Marull as Leonor |
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Silvia Abascal as Luisa Llorente |
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Rodolfo Sancho as Eduardo |
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Ana Risueño as Dra. Cerviá |
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Norma Ruiz as Ana |
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Santi Prego as Santiago |
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José Luis Torrijo as Dámaso |
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Jesús Olmedo as Chambelán |
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José Torija as Engendro |
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María Alfonsa Rosso as Gitana |
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Jesús Cabrero as Médico Samur |
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Candela Fernández as Gitana joven |
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José Luis Martínez Mollá as Sargento Guardia Civil |
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Alberto Mateo as Oficial Guardia Civil |
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Luis Zahera as Lovecraft |
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Ignacio García-Bustelo as Camarero |
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Paul Naschy as Jervás |
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Eusebio Poncela as Maximilian |
| Directing | José Luis Alemán | Director |
| Writing | José Luis Alemán | Writer |
| Writing | H.P. Lovecraft | Author |
| Writing | José Luis Alemán | Story |
| Production | José Luis Alemán | Producer |
| Production | Miguel Ángel González | Producer |
| Production | Íñigo Marco | Producer |
| Sound | Arnau Bataller | Original Music Composer |
| Camera | David Azcano | Director of Photography |
| Editing | Frank Gutiérrez | Editor |
| Costume & Make-Up | Caitlin Acheson | Key Makeup Artist |
| Art | Carlos Salgado | Concept Artist |
| Sound | Juan Ramon Castaño | Sound |
| Sound | Antonio 'Mármol' Rodríguez | Sound |
| Crew | Ángel Plana | Stunt Coordinator |
